1169 



A = :s h,^!' , 



—o 



we have 



A.=:0, 



A, = + 0.0083292 



A, = 



(15) 



(16; 



5. Denoting the five terms of the right member of (13) hy I, II, 

 III, IV, V, each of these terms can be developed thus : 



+ 00 



I =z 2 J^, sin (tü* -(- pr), 



V:=: 2 V^j sin ('U!'-{-pT). 



(17) 



The coefficients 7^,, . . , Vj, liave e' as factor and can be developed 

 thus: 



Ip = 2 lp,r fi' , 

 r=0 



The following development for of) results: 



60 = e''^: a^piiP + e' (^'[{ii-^ 



p=0 



+« 



(9^''^= JS- O^^^fsiniT^-^gr), p = -l,0,.., + ^ 



(e) 



iO'.?) 



The coefficients <9, ' can be determined by the lelations : 



(e') 



The development of on is : 



(18) 



(19) 



(20) 



